Graham Prentice/Alamy
How are sea levels measured over time?
Joel Epstein, Boston, Massachussetts, US
Adam Hester/Getty Images
Advertisement
UV radiation is strongest when the sun is highest. Is this down to the angle of the sun or UV attenuation? When does my face get the most UV?
Paul Gulliver, London, UK
To answer this question – or ask a new one – email lastword@newscientist.com.
Questions should be scientific enquiries about everyday phenomena, and both questions and answers should be concise. We reserve the right to edit items for clarity and style. Please include a postal address, daytime telephone number and email address.
New Scientist Ltd retains total editorial control over the published content and reserves all rights to reuse question and answer material that has been submitted by readers in any medium or in any format.
You can also submit answers by post to: The Last Word, New Scientist, 25 Bedford Street, London WC2E 9ES.
